Classical prescriptions

with few herbs and great effect

are widely used by doctors. In the face of complex diseases and symptoms

in order to give full play to classical prescriptions effect

the applications of classical prescriptions need to be expanded and new vitality should be promoted. The authors put forward that the principles to be followed in modern applications of classical prescriptions include familiarity with principles of formulating classical prescriptions

laying a solid foundation

combination of disease and syndrome

meeting the demand

aiming at the pathogenesis

seizing the key point

scientific evaluation beneficial to communication

mastering the laws and targeted; while the ways of modern expanding applications of classical prescriptions include correspondence of prescription and syndrome and tying in with cause-pathogenesis-symptom-treatment

correspondence of prescription and symptom and focusing on effective combination

cautiously grasping pathogenesis and letting go of symptoms changes

referring to other doctors and being flexible

diving into the original text and getting new knowledge

combining with classical prescriptions and following Zhang Zhongjing’s wise methods

combining with present prescriptions and modifying widely

summarizing and understanding modifying methods

understanding formula unit and endless changes

studying the methods without copying specific prescriptions. Seizing the principles and ways of expanding applications of classical prescriptions is of great importance to improve the clinical effect.